Here's a picture of the card in the dark so you can really see those stars glow!
The card is made from cardstock, foam, posterboard, glitter, and plastic.
First I designed this picture in Clip Studio for the background.
For the clear front part of the globe, I cut off a piece from the top of an egg carton and cut it to shape.
I then mounted that piece on a ring of foam.
The glittery blue piece is also foam.
I added in some snowflake glitter, tiny glass balls, and glow in the dark star glitter.
The base of the snow globe is gold poster board, I rubbed off the gold coloring on the bottom portion with rubbing alcohol to give it a silver look.
References used: